diff --git a/source/core/src/main/com/csse3200/game/screens/MainGameScreen.java b/source/core/src/main/com/csse3200/game/screens/MainGameScreen.java
index cebd5352c..64a323050 100644
--- a/source/core/src/main/com/csse3200/game/screens/MainGameScreen.java
+++ b/source/core/src/main/com/csse3200/game/screens/MainGameScreen.java
@@ -32,10 +32,7 @@
 import com.csse3200.game.physics.PhysicsService;
 import com.csse3200.game.rendering.RenderService;
 import com.csse3200.game.rendering.Renderer;
-import com.csse3200.game.services.CurrencyService;
-import com.csse3200.game.services.GameTime;
-import com.csse3200.game.services.ResourceService;
-import com.csse3200.game.services.ServiceLocator;
+import com.csse3200.game.services.*;
 import com.csse3200.game.ui.terminal.Terminal;
 import com.csse3200.game.ui.terminal.TerminalDisplay;
 import com.csse3200.game.components.maingame.MainGameExitDisplay;
@@ -100,6 +97,7 @@ public MainGameScreen(GdxGame game) {
 
     ServiceLocator.registerEntityService(new EntityService());
     ServiceLocator.registerRenderService(new RenderService());
+    ServiceLocator.registerGameEndService(new GameEndService());
 
     renderer = RenderFactory.createRenderer();
     renderer.getCamera().getEntity().setPosition(CAMERA_POSITION);
diff --git a/source/core/src/main/com/csse3200/game/services/GameEndService.java b/source/core/src/main/com/csse3200/game/services/GameEndService.java
new file mode 100644
index 000000000..1790dc586
--- /dev/null
+++ b/source/core/src/main/com/csse3200/game/services/GameEndService.java
@@ -0,0 +1,22 @@
+package com.csse3200.game.services;
+
+public class GameEndService {
+
+    private int engineerCount;
+
+    public GameEndService() {
+        this.engineerCount = 5;
+    }
+
+    public int getEngineerCount() {
+        return engineerCount;
+    }
+
+    public void updateEngineerCount() {
+        engineerCount -= 1;
+        if (engineerCount == 0) {
+            // loss screen
+
+        }
+    }
+}
diff --git a/source/core/src/main/com/csse3200/game/services/ServiceLocator.java b/source/core/src/main/com/csse3200/game/services/ServiceLocator.java
index 5bbe956cc..5683715e4 100644
--- a/source/core/src/main/com/csse3200/game/services/ServiceLocator.java
+++ b/source/core/src/main/com/csse3200/game/services/ServiceLocator.java
@@ -24,6 +24,7 @@ public class ServiceLocator {
   private static GameTime timeSource;
   private static InputService inputService;
   private static ResourceService resourceService;
+  private static GameEndService gameEndService;
 
   public static CurrencyService getCurrencyService() {
       return currencyService;
@@ -53,6 +54,10 @@ public static ResourceService getResourceService() {
     return resourceService;
   }
 
+  public static GameEndService getGameEndService() {
+    return gameEndService;
+  }
+
   public static void registerCurrencyService(CurrencyService service) {
     logger.debug("Registering currency service {}", service);
     currencyService = service;
@@ -88,6 +93,11 @@ public static void registerResourceService(ResourceService source) {
     resourceService = source;
   }
 
+  public static void registerGameEndService(GameEndService source) {
+    logger.debug("Registering game end service service {}", source);
+    gameEndService = source;
+  }
+
   public static void clear() {
     entityService = null;
     renderService = null;
@@ -95,6 +105,7 @@ public static void clear() {
     timeSource = null;
     inputService = null;
     resourceService = null;
+    gameEndService = null;
   }
 
   private ServiceLocator() {